These potentiometers have many technical advantages. They make it possible to provide in a simple and economic way absolute set points.
To 5 potentiometers (of 100 Ohm with 100 kohm 5W) of high-resolution (0,02%) can be gone up on the same case, while remaining very compact.
These apparatuses integrate to 9 cams for the intermediate ends of the road, or other points and exist in version 24V-240V AC or 12-24V cd., with a large variety of cycle time.